Heat interchanger



G. EGLOFF HEAT INTERCHANGER Dec. 22 1925.

Fil ed Jan. 6. 1921 PUMP ySZVZg/ofi FLU/D W FoR v- CO0L1/vq LIQUIDPatented u e 22, 1925.

UNITED "STATES PATENT-OFFICE.

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Application filed January 6, 1921. Serial No. 485,321. I

This invention relates to improvements in' heat intercl1angers,and isadapted to be used either as a preheater, condenser or 'deph1egmator orserve at the same time both as a condenser and preheater.

The object of the invention is to secure the highest efliciency in heatinterchangers by causing the raw oil to travel erpendicular to the flowof hot vapors or ot oil.. The following covers a description of the heatinterchanger, as shown in the drawing, in

which the single figure is a view, partly in side elevation and partlyin vertical section, of my improved heat interchanger.

Referring in detail to the drawing, 1 designates a cylindrical shellhaving two compartments 2 and 3, one at each end. 4 and 5 re resent tubeplates in which are expan ed tubes 6. At right angles to tubes 6 aresupported partitions 7' forming compartments 7 through which the coolingliquid travels from header 8 by means of pipe connections 9 connectingheader 8 and compertinent 7 to one another. .10 represents pipeconnections from compartment 7, carrying the cooling liquid by means ofheader 11 through ipe 12 controlled by valve 13 to a system. not shown).

Pump 14 forces the cooling liquid controlled by valve 15, to thecompartments 7 which are perpendicular to pipes '6. The hot vapors orhot oil from the still (not shown? pass by means of pipe 16 controlled'by va ve 17 1nto compartment 3 and up through pipes 6 to compartment 2and out b means of pipe 18 to a system (not slibwn). The heatinterchanger may be utilized asv a de hlegmating apparatus, such as isused in t e cracking o hydrocarbon oils and when employed for thispurpose, the vapors from t up through a series of pipes as shown in thedrawing while perpendicular to the flow of heated vapors to the crackingstill a cool e cracking system pass ing liquid such as raw oil',-wateror the like i I flows around the tubes at right angles to the direction.of flow of the heated vapors, a veryhigh heat interchange elficiency,-is obtained. I particularly stress the fact that the cooling liquid isalways travelling at rifght angles or perpendicular to the flow o thehot vapors and a much. smaller amount ofcooling fluid is necessary overany other heat interchanger, of WhlCh I am aware.

The heat interchange as described is particularly eflicient when heatedoil residuums from the atmospheric distillation of petroleum or otherhydrocarbons are to be cooled. When using the heat interchanger for hotoil, water may be used as the cooling agent and we have found that thissystem is more eflicient than any system thus far devised. In using thisheat interchanger practically we have utilized as coolin liquid ahydrocarbon oil such as gas oil and found that we could bring thetemperature of the cooling liquid to upwards of 400 degrees F., I

from the hot. residuum oil leaving the cracking system, and this hot gasoil was utilized directly in the cracking system as the raw oil to beconverted into gasoline.

I do not limit myself in this invention to' its use in the petroleumart. either as ajde- 'phlegmating apparatus for the fractionation ofhydrocarbon vapors oras a heat interchanger for the cooling of heatedoil but it may be efliciently used as a heat interchan r where there isa.difi'erent temperature i:- tween the cooling material and the heatedmaterial.

I claim as my invention:

1. In a heat interchanger for treating petroleum oils and vapors,comprising a main body portion, a plurality of vertically arranged tubespositioned within the main body portion, means for passing oil throughsaid tubes, saidmain body. portion being provided with a plurality oftransversely extending partition members forming a multiplicity ofclosed fluid receiving chambers, and means for individually passing oilthrough each of said chambers trans.

versely to the flow of oil through said vertically arranged tubes.

2. In a heat interchanger for treating petroleum oils and vapors,comprising a said main body portion, tubes connecting l0 main bodyportion, a plurahty of vertically said headers to said chambers, andmeans arranged tubes positioned within'said main for forcing oil of arelatively low temperbody portion, means for; passing hot oils or aturethrough one of said headers and its gases through said tubes, said mainbody connecting tubes through the said chambers' portion being providedwith a plurality of to cool the said oils and vapors in the ver- 15transversely extending members forming a tically arran ed tubes, andmeans for drawmultiplicity of fluid receiving chambers, a r ing ofi the011 from the adjacent header. vertically arranged header on each side ofGUSTAV EGLOFF.

